Every claim says how far it goes.
One question, three strengths of answer: does showing the bottle first keep more people watching?
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Observation
In this ad the bottle is on screen from 0:00, and the face reaches the camera at 0:03.7. It describes one ad. It does not compare.
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Association
Among comparable skincare ads, the ones that open on the product held more viewers at 0:03. Audience or budget the data doesn’t show may explain it.
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Test
Against a holdout, the product-first cut moved the chosen KPI by a stated amount, with a stated range. This is the only seal that means “because”.